scholarly journals A Photon Blockade in a Coupled Cavity System Mediated by an Atom

2019 ◽  
Vol 9 (5) ◽  
pp. 980 ◽  
Author(s):  
Ming-Cui Li ◽  
Ai-Xi Chen
Keyword(s):  
Single Photon ◽  
Continuous Laser ◽  
Linear Cavity ◽  
Weakly Nonlinear ◽  
Potential Applications ◽  
Cavity System ◽  
Nonlinear Cavity ◽  
Photon Source ◽  
Coupled Cavity ◽  
Photon Blockade

We investigate theoretically the photon statistics in a coupled cavity system mediated by a two-level atom. The system consists of a linear cavity weakly driven by a continuous laser, and a nonlinear cavity containing an atom inside. We find that there exists a photon blockade in the linear cavity for both parameter regimes where the coupling strength between the atom and the nonlinear cavity is greater (or less) than the dissipation rate of the linear cavity. We also extend our model by pumping the two cavities simultaneously and find that the conventional photon blockade is apparent in the linear cavity, whereas the unconventional photon blockade appears in the nonlinear cavity. These results show that our work has potential applications for a single photon source in a weakly nonlinear system.

scholarly journals An all-silicon single-photon source by unconventional photon blockade

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Hugo Flayac ◽  
Dario Gerace ◽  
Vincenzo Savona
Keyword(s):  
Quantum Interference ◽  
Light Propagation ◽  
Single Photon ◽  
Optical Nonlinearity ◽  
Single Photons ◽  
Single Photon Source ◽  
Silicon Based ◽  
Photon Source ◽  
Unconventional Photon Blockade ◽  
Photon Blockade

Abstract The lack of suitable quantum emitters in silicon and silicon-based materials has prevented the realization of room temperature, compact, stable and integrated sources of single photons in a scalable on-chip architecture, so far. Current approaches rely on exploiting the enhanced optical nonlinearity of silicon through light confinement or slow-light propagation and are based on parametric processes that typically require substantial input energy and spatial footprint to reach a reasonable output yield. Here we propose an alternative all-silicon device that employs a different paradigm, namely the interplay between quantum interference and the third-order intrinsic nonlinearity in a system of two coupled optical cavities. This unconventional photon blockade allows to produce antibunched radiation at extremely low input powers. We demonstrate a reliable protocol to operate this mechanism under pulsed optical excitation, as required for device applications, thus implementing a true single-photon source. We finally propose a state-of-art implementation in a standard silicon-based photonic crystal integrated circuit that outperforms existing parametric devices either in input power or footprint area.

Translocations In Space-Time and Simultaneous States of the Universe: Convergent Quantifications and Alternative Solutions from the Principles of Physics for the Challenges of “Time Travel” and “Parallel Universes”

2016 ◽  
pp. 4058-4069
Author(s):  
Michael A Persinger
Keyword(s):  
Single Photon ◽  
Rest Mass ◽  
Space Time ◽  
Hydrogen Line ◽  
Magnetic Forces ◽  
Universal Space ◽  
Potential Applications ◽  
Order Of Magnitude ◽  
Alternative Solutions ◽  
The Universe

                                Translation of four dimensional axes anywhere within the spatial and temporal boundaries of the universe would require quantitative values from convergence between parameters that reflect these limits. The presence of entanglement and volumetric velocities indicates that the initiating energy for displacement and transposition of axes would be within the upper limit of the rest mass of a single photon which is the same order of magnitude as a macroscopic Hamiltonian of the modified Schrödinger wave function. The representative metaphor is that any local 4-D geometry, rather than displaying restricted movement through Minkowskian space, would instead expand to the total universal space-time volume before re-converging into another location where it would be subject to cause-effect. Within this transient context the contributions from the anisotropic features of entropy and the laws of thermodynamics would be minimal.  The central operation of a fundamental unit of 10-20 J, the hydrogen line frequency, and the Bohr orbital time for ground state electrons would be required for the relocalized manifestation. Similar quantified convergence occurs for the ~1012 parallel states within space per Planck’s time which solve for phase-shift increments where Casimir and magnetic forces intersect.  Experimental support for these interpretations and potential applications is considered. The multiple, convergent solutions of basic universal quantities suggest that translations of spatial axes into adjacent spatial states and the transposition of four dimensional configurations any where and any time within the universe may be accessed but would require alternative perspectives and technologies.

On-demand single-photon source for 1.3μm telecom fiber

2005 ◽  
Vol 86 (20) ◽  
pp. 201111 ◽  
Author(s):  
M. B. Ward ◽  
O. Z. Karimov ◽  
D. C. Unitt ◽  
Z. L. Yuan ◽  
P. See ◽  
...  
Keyword(s):  
Single Photon ◽  
Single Photon Source ◽  
On Demand ◽  
Photon Source

An electrically injected quantum dot spin polarized single photon source

2010 ◽  
Vol 96 (10) ◽  
pp. 101105 ◽  
Author(s):  
Pallab Bhattacharya ◽  
Ayan Das ◽  
Debashish Basu ◽  
Wei Guo ◽  
Junseok Heo
Keyword(s):  
Quantum Dot ◽  
Single Photon ◽  
Single Photon Source ◽  
Spin Polarized ◽  
Photon Source

Heralded single-photon source in a III–V photonic crystal

2013 ◽  
Vol 38 (5) ◽  
pp. 649 ◽  
Author(s):  
Alex S. Clark ◽  
Chad Husko ◽  
Matthew J. Collins ◽  
Gaelle Lehoucq ◽  
Stéphane Xavier ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Photon ◽  
Single Photon Source ◽  
Photon Source

Sound tunes single-photon source

2009 ◽  
Vol 3 (11) ◽  
pp. 611-612 ◽  
Author(s):  
John Cunningham
Keyword(s):  
Single Photon ◽  
Single Photon Source ◽  
Photon Source

scholarly journals Third-order antibunching from an imperfect single-photon source

2014 ◽  
Vol 22 (3) ◽  
pp. 3244 ◽  
Author(s):  
Martin J. Stevens ◽  
Scott Glancy ◽  
Sae Woo Nam ◽  
Richard P. Mirin
Keyword(s):  
Single Photon ◽  
Single Photon Source ◽  
Third Order ◽  
Photon Source

scholarly journals Experimental realization of a low-noise heralded single-photon source

2011 ◽  
Vol 19 (2) ◽  
pp. 1484 ◽  
Author(s):  
G. Brida ◽  
I. P. Degiovanni ◽  
M. Genovese ◽  
A. Migdall ◽  
F. Piacentini ◽  
...  
Keyword(s):  
Single Photon ◽  
Low Noise ◽  
Single Photon Source ◽  
Experimental Realization ◽  
Photon Source

Towards a single-mode single photon source based on single quantum dots

2001 ◽  
Vol 94-95 ◽  
pp. 797-803 ◽  
Author(s):  
I. Robert ◽  
E. Moreau ◽  
J.M. Gérard ◽  
I. Abram
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Single Mode ◽  
Single Quantum ◽  
Single Photon Source ◽  
Single Quantum Dots ◽  
Photon Source
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